Globe-holder for lamps



No. 62l,947. Patented Mar. 28, I899.

11. 0. SAYR'E.

GLOBE HOLDER FOBLAMPS.

[Application filed Nov. 22, 1898-.)

No Model.)

" FFICE.

HATENT DUDLEY O. SAYRE, OF SOUTH ORANGE, NEW JERSEY.

GLOBE-HOLDER FOR LAMPS.

SPECIFICATION forming part of Letters Patent No. 621,9467, dated March 28, 1899.

Application filed November 22, 1898. Serial No. 897,146. (No model.)

To aZZ whom it may concern.-

Be it known that 1,.DUDLEY O. SAYRE, a citizen of the United States, residing at South Orange, county of Essex, State of New Jersey, have invented certain new and useful Improvements in Globe llolders for Lamps, fully described and represented in the foll0w= ing specification and the accompanying drawings, forming a part of the same.

The object of the present invention is t provide a globe-holder with a series of springs adapted to retain the globe upon the gas-fixture and fitted by a special construction of the springs to permit the automatic. insertion of the globe-flange within the springs. Heretofore springs fixed at one end have been secured within the rim of a globe-holder and provided each at its free end with a'handle or stem projected outwardly through the rim and provided with a knob at the end to retract the springs when inserting the flange of the globe into the holder or removing it therefrom. The springs which I use are provided with inclined surfaces, into which the globeflange may be pressed to crowd the springs outwardly until the flange rests upon the ring of the globe-holder, when the springs move inwardly and retain the flange within the holder by their elasticity.

The invention consists partly in the particular construction of the spring and partly in the combination, with the globe-holder, of a series of spring-leaves constructed and arranged to be forced outwardly by the pressure of the globe-flange. The spring has an outwardly-inclined portion which is adapted when the globe-flange is pressed downwardly thereon to force the spring outwardly to admit the flange to the holder. The spring having such outwardly-inclined surface may be made in a variety of forms, but is illustrated herein as a narrow leaf attached rigidly at one end and movably at the other end to the rim of the holder and provided at the middle with an upwardly-projecting lug which is inclined outwardly at the top to force the spring outwardly when the flange is pressed thereon. The spring is illustrated in connection with a globe-flange which is flared outwardly at an angle of about thirty degrees, as is usual with such construct-ions, and a spring in contact with such flange is adapted to be forced outwardly when the flange is lifted from the holder to detach the globe. The same spring, however, which is provided with an outwardly-inclined surface to automatically admit the globe-flange maybe used with a flange that is inclined too much to force the spring outwardly automatically in removing the globe, and in such case astud may be attached to the 1eaf=spring intermediate to its ends to retract the spring.

The invention will be understood by reference to the annexed drawings, in which- Figure 1 is a plan of a holder provided with my improvements; Fig. 2, a section of the globe and rim of the holder with one of the springs shown at the right and also one at the left hand of the same; Fig. 3, a section of the holder viewed in the direction of one spring, and Fig. 4 shows part of the holder in plan with an alternative construction for the spring. Figs. 3 and 4 show the parts in position with the rivets removed.

A designates the rim of the holder, and A the ring which supports the flange of the globe.

B designates three leaf-springs, secured by their ends inside the rim A. The springs are set a little above the ring A and project far enough inwardly at the middle to press firmly upon the flange of the globe. The springs are forced a little outward when the flange of the globe is in place and resting upon the rim A, and the elasticity of the springs then serves to press them elastically upon the outer side of the flange. Such flange is always made flaring, as shown in Fig. 2, to-engage clamping devices used with the holder, the flange shown in the drawings being of such an angle as to disengage automatically from the springs that are shown. 7

In Fig. 2 the flange C of the globeD is shown in section resting upon the ring A, and one of the springs is shown in section at the left side of the figure pressed upon the sloping side of the flange. v

WVhere' the holder is provided with three springs, as shown in Fig. 1, they would not appear at opposite sides of a section like Fig. 2; but springs are shown at opposite sides of such figure to illustrate two different constructions, the spring at the left side being shown with an upwardly-projecting lug b, which is projected outwardly sufficient to permit the insertion of the flange within the top of the lug, so that a downward pressure of the flange may force the spring outwardly. The flange may thus be applied automatically to the holder and secured therein without any manipulation whatever of the springs.

With a flange of the angle shown in Fig. 2 the inclined surface of the flange presses upon the under edge of the spring and forces the same outwardly as the globe is lifted, and the globe is thus freed automatically from the holder without requiring any special act of the operator to disengage the spring.

The spring at the right side of Fig. 2 is shown provided with a stud 0, having a head d, as

is also shown upon the spring at the lower right-hand side of Fig. 1, such stud being adapted when used in conjunction with the inclined lug I) (which is shown upon all of the springs in Fig. 1) to retract the spring when lifting the flange from the holder if necessitated by the abrupt angle of the flange.

To facilitate the yielding of the springs, they may be secured rigidly to the rim A at one end by a tightly-fitting rivet a, as shown in Fig. 3, and at the other end by a rivet a, fitted to a hole of greater diameter than the rivet, so as to permit the end of the spring to play a little upon the same. In such case the rivet a would be pinched directly upon the spring, while the rivet a would be headed overwithout pinching the spring, so as to permit its movement.

The springs are secured above the ring A, as shown in Figs. 2 and 3, to form a space B between the under side of the spring (at its middle) and the ring, into which space the flaring edge of the globe-flange C may project, as shown in Fig. 2, so as to be secured in place by the spring, and the springs are made of suitable strength and elasticity to retain the globe from displacement under ordinary jars, while they are adapted to yield when pressed outwardly by the insertion or lifting of the globe.

In practice the flange of the globe when applying it to the holder would be crowded beneath two of the springs and then pressed downwardly upon the third, the inwardlysloping surface of the spring (which is formed by the outwardly-sloping surface of the lug b) permitting such downward movement to force the spring outwardly until the flange slips beneath the same. As the flange of the globe is held elastically, it is capable of expanding when heated without any injurious results.

It is obvious that leaf-springs possessing the same function may be formed with feet at the ends for riveting to the ring A instead of the rim A, and such construction is shown in Fig. 4, where b designates the feet of the spring.

Where three springs are used in the holder, it is only necessary to retract one of the springs when inserting the globe, as the flange may be first crowded beneath the other two springs, and it is evident that it is absolutely necessary to provide only one of the springs with the inclined surface formed by the lug b. It is, however, a more simple and convcn-- ient construction to make all the springs alike, with the lug b or an equivalent outwardly-inclined surface, so that any of the springs may operate automatically when pressed by the globe.

It is obvious that two springs may be used instead of three where it is found that the globe can be sufficiently secured by such springs, and the number of the springs in the series is therefore immaterial. It is immaterial how the sloping surface be formed upon the spring to receive the pressure of the globefiange when inserting it within the holder; but I have claimed herein the inclined lug as a construction especially adapted for the purpose.

The invention is applicable to holders for all kinds of flanged globes.

Having thus set forth the nature of the invention, what is claimed herein is 1. The combination, with the globe-holder having the rim A and ring A, of the series of leaf-springs B each secured to the'holder rigidly at one end and m ovably at the other end, and constructed and arranged to be forced outwardlyby the pressure of the globe-flange, substantially as herein set forth.

2. The combination, with the globe-holder having the rim A and ring A, of the series of leaf-springs I having a rivet-hole at each end and attached thereby to the holder, and inclined outwardly above the ring A intermediate to the ends as set forth, to be engaged automatically by the globe-flange when pressed thereon, substantially as herein set forth.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

DUDLEY O. SAYRE.

IVitnesses:

I1. LEE, THOMAS S. CRANE. 

